Heated windshield wiper



March 24, 1936. T. c. SACKETT HEATED. WINDSHIELD WIPER Original Filed Nov. 16, 1933 WWW/M hm 3% y 06 horizontal section; and

Patented Mar. 1 936 UNITED STATES PATENT OFFICE,

2,034,880 HEATED WINDSHIELD WIPEB Thomas C. Sackett, Stuart, Iowa Application November 1c, 193:, seen Renewed August 12, 1935 This invention relates to \a windshield wiper for the windshield of an automobile or other vehicle, and particularly toa windshield wiper which is heated.

It is well knownto in the cold seasons windshield, seridusly lnterfering'with the vision drivers of automobiles that i It is another objector the invention to provide a windshield wiper comprising an elongated cassaid heating elements.

It ismore specifically an object oi the invento provide awindshield wiper comprising a 45 to said elements.

These and other objects and advantages" oi. the

50 similar parts throughout the sev:

eral views andin which:

' Fig. 1 is aperspective view of said wiper;

2 is a top planview thereof, some parts belngbroken away and others being shown in frost often collects on the portions b. The edge and said casing is secured said heating elements are secured Fig. 3 is a vertical section taken on line 3-3 01' Fig. 2.

Referringto the drawing, a windshield wiper is shown comprising an elongated hollow casing l0. While this casing may be-variously formed, 5 in the embodiment of the invention illustrated, it is shown as formed of a piece of sheet material such as sheet metaL, Said piece of sheet metal is of substantially rectangular form, the same being bent into substantially elliptical shape to have 10 the top concave side Illa and the concave side portions We of said sheet are bent inwardly in'substantially parallel relation centrally of said casing and a wiper blade II which will be flexible and resilient and prefl5 erably made 01' rubber or similar material is secured between edge portions I00. Blade II can be clamped in position or it may also be secured to edge portions I 0c by suitable adhesive. Said I blade is substantially rectangular in cross section 2 and projects at one side of casing I0, its outer edge being of increased width to form corners Ila of angles less than a right angle. Blocks l2 of insulating material, such as some rubber composition and in the form of discs, are disposed at each end or casing I0, said blocks closing the ends of said casing. Said blocks I 2 have flanges extending a short distance inwardly of casing III to said flanges in any suitable manner. In'the embodiment of the invention illustrated said blocks are shown secured to casing It by the scre I3; An electrical heating element 14 is provided and the same consists of two portions or elements of heating material I orwire illustrated as in the form of helices ex! tending between blocks I 2 in either side of casing I0 and between the outer walls thereof and the inturned portions I00. The portions or heating element I 4 are connected at one end to said casing and held to one disc l2 by the clamping 40 member I5 secured in any suitable manner to said block .I2.. At the other end of said casing to and extend through the block I2 and have'connected thereto electrical conductors I6 which will conveniently be enclosed in the cord I! which will extend to a suitable source of current. Clamp "members I I are secured to casing I 0 at the central portion thereof, said members being formed ot-narrow strips of sheetmetal which will be secured to said 0 apertured to receive a headed and nutted clamping bolt 20 extending therethrough and securing the wiper to arm l9. The arm I9 is connected to some suitable actuating means which oscillates the wiper over the windshield in a manner well known and now common in the art. In practice the casing l0 will be suitably coated with some weather-resisting coating which may also be applied to portions l2 and be such as to give the wiper a pleasing and orna mental appearance.

In operation the wiper will be disposed at the outer side of the windshiel and supported by the arm H! which depen fromthe operating mechanism which is usually located at the top of ,the windshield. The conductors it in cord i! will be connected to the battery of the automobile which is now a standard part thereof.- Current will be supplied to conductors l4 and a suitable switch '(not shown) will be provided to turn the current on and ofi, which switch will be disposedin position for convenient manipulation by the driver. When current is supplied to the heating element M, the casing l0 will be heated and this heat will be radiated to'th glass of the windshield. T'ne motion of thee will tend to cause the air. to carry the heat toward the windshield. The windshield and the layer of air adjacent the same will be sufliciently heated to melt any frost, ice or snow which may tend to form thereon and the windshield will be kept in clean and clear con:- dition by the wiper blade I i. The heating element consumes very little electrical power and ample current can besupplied by the ordinary battery withoutunduly discharging the battery.

The casing in withblock'ji forms a waterproof structure.

- The wiper can be connected to any of the various operating arms already provided on automobiles and it will only take a few minutes to substitute the present windshield wiper for the ones now employed. The wiper can, of course, also be installed as new equipment.

From the above description it will be seen that applicant has provided a very windshield wiper and one which will have a high degree of utility in weather where frost; ice or snow tends to collect on the windshield. The device is quite simple in construction and can be l8. This coating will substantially rectangular and a conductor cord for conducting simple and efiicient made'and sold at a very reasonable price. The

device has been amply demonstrated in actual.

practice and found to be very successful and eflicient.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicant's invention,

which generally stated, consists in a device capable of carrying out the objects above set forth in the parts and combinations of parts disclosed and-defined in the appended claims.

What is claimed isz- 1. A windshield wiper comprising an elongated casing of sheet metal, said casing comprising a piece of sheet metal bent. into elliptical form and having its free side edges bent to extend inwardly in parallel relation centrally of said casing, a flexible and resilient wiper blade held between said edge portions, heating elements extending longitudinally of said casing at each side of said blade and edge portions current to said elements.

v 2. A windshield-wiper com casing-formed from-a piece of tangular sheet metal the edge portions of the free sides of said sheet re-entrantly bent to extend in parallel relation, a flexible wiper blade held between said edge poronsand substantially dividing said easing into wo compartments, members closing the ends of said casing, a heating tudinally in each compartment and means for rising an elongated substantially rec- ,conducting current to said elements.

3. A windshield wiper comprising a sheet of material of substantial rectangular form having its opposite sides bent into tubular form to form acasing the free edge portions of said sheet ex tending in parallel relation toward the closed side of said casing, a wiper blade held between said portions and projecting therefrom, means for supporting said casing with said wiper blade engaging the windshield, heating elements disposed in said casin and extending longitudinally therein at each side. of said blade and meansfor supplying current to said heating elements.

C. SACKETT.

bent to form a hollow tube,'

element extending longi- 

